Windfinders
Windfinders can be found on every ship the Sea Folk inhabit. Most Windfinders can channel, and are ranked only under the Sailmistress and Cargomaster on a ship. Windfinders who can channel can typically handle Air and Water most skillfully, creating thick and powerful flows to aid their ship's travel. Conversely, many have little to no skill with Fire or Earth, even less than most female channelers, due to the nature of their society.
Windfinders typically fear being found by Aes Sedai, as they believe the Aes Sedai may take them to the White Tower against their will to train them. Because of this, a Windfinder has the right to refuse passage to a passenger who can channel, something usually reserved for the Sailmistress of the ship.
However, when Nynaeve and Elayne approach the Sea Folk on the orders of the rebel Amyrlin Egwene al'Vere, they comply with many of the Aes Sedai's requests, such as assistance in finding and using the Bowl of the Winds and helping Elayne Trakand maintain Caemlyn's food supplies during the siege, by opening gateways for merchant wagons to travel through.
Read more about this topic: Atha'an Miere